Super Micro Faces Securities Fraud Class-Action Suit

Super Micro Computer, Inc., a San Jose, California-based provider of high-performance servers and AI hardware, faced a proposed class-action lawsuit filed in San Francisco federal court on March 26, 2026, accusing the company of securities fraud. Shareholders alleged that Super Micro concealed its heavy reliance on sales to China, which violated U.S. export controls, and failed to disclose weaknesses in its compliance programs, thereby inflating its stock price. The suit names CEO Charles Liang and CFO David Weigand as defendants and seeks unspecified damages for investors who bought shares between April 30, 2024, and March 19, 2026.

The civil action follows criminal charges unsealed by federal prosecutors the previous week against company cofounder and former board member Yih-Shyan Liaw, Taiwan sales manager Ruei-Tsang Chang, and contractor TingWei Sun. Authorities accused the three of conspiring to divert approximately $2.5 billion worth of servers equipped with restricted Nvidia AI chips to Chinese entities in 2024 and 2025. The scheme reportedly involved routing the servers through an unnamed Southeast Asian intermediary, where serial numbers were allegedly altered on dummy...